The path is not allowed: media/pdf/ #0 /var/www/doorsforsecurity.co.uk/htdocs/vendor/magento/framework/App/Bootstrap.php(264): Magento\MediaStorage\App\Media->launch() #1 /var/www/doorsforsecurity.co.uk/htdocs/pub/get.php(106): Magento\Framework\App\Bootstrap->run() #2 {main}